LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE
First Claim
1. A liquid crystal display device displaying an image by using overshoot driving, comprising:
- a temperature sensor measuring a surface temperature of a liquid crystal panel;
a gradation conversion section performing a gradation value shift process of shifting inputted gradation values to lower gradation values; and
a pseudo-multi-gradating section performing a pseudo-multi-gradating process on image data on which the gradation value shift process has been performed by the gradation conversion section,the gradation conversion section deciding whether or not to perform the gradation value shift process depending on the surface temperature of the liquid crystal panel measured by the temperature sensor.
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Accused Products
Abstract
A liquid crystal display device displays an image by using overshoot driving. In at least one embodiment, the liquid crystal display device includes: a temperature sensor measuring a surface temperature of a liquid crystal panel; a gradation conversion section performing a gradation value shift process of shifting inputted gradation values to lower gradation values; and a pseudo-multi-gradating section performing a pseudo-multi-gradating process on image data on which the gradation value shift process has been performed by the gradation conversion section. The gradation conversion section decides whether or not to perform the gradation value shift process depending on the surface temperature of the liquid crystal panel measured by the temperature sensor.
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Citations
11 Claims
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1. A liquid crystal display device displaying an image by using overshoot driving, comprising:
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a temperature sensor measuring a surface temperature of a liquid crystal panel; a gradation conversion section performing a gradation value shift process of shifting inputted gradation values to lower gradation values; and a pseudo-multi-gradating section performing a pseudo-multi-gradating process on image data on which the gradation value shift process has been performed by the gradation conversion section, the gradation conversion section deciding whether or not to perform the gradation value shift process depending on the surface temperature of the liquid crystal panel measured by the temperature sensor. - View Dependent Claims (2, 3, 4, 5)
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6. A method for driving a liquid crystal display device displaying an image by using overshoot driving, the liquid crystal display device including a temperature sensor measuring a surface temperature of a liquid crystal panel, the method comprising:
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a gradation conversion step of deciding whether or not to perform a gradation value shift process for shifting inputted gradation values to lower gradation values depending on the surface temperature of the liquid crystal panel measured by the temperature sensor; and a pseudo-multi-gradating step of performing a pseudo-multi-gradating process on an image data on which the gradation value shift process has been performed in the gradation conversion step. - View Dependent Claims (7, 8, 9, 10)
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11. A liquid crystal display device displaying an image by using overshoot driving, comprising:
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a temperature sensor measuring a surface temperature of a liquid crystal panel; a gradation conversion section performing a gradation value shift process of shifting inputted gradation values to lower gradation values; a pseudo-multi-gradating section performing a pseudo-multi-gradating process on an image data on which the gradation value shift process has been performed by the gradation conversion section; a backlight irradiating the liquid crystal panel with light; and a backlight driving section adjusting luminance of the light irradiated by the backlight, the gradation conversion section deciding whether or not to perform the gradation value shift process depending on the surface temperature of the liquid crystal panel measured by the temperature sensor, and the backlight driving section adjusting the luminance of the light irradiated by the backlight so that irradiation luminance is higher when the gradation conversion section performs the gradation value shift process than when the gradation conversion section does not perform the gradation value shift process.
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Specification